LARGE MINERAL SPECIMEN OF KURNAKOVITE FROM KERN CO. , CALIFORNIA
Item History & Price
| Reference Number: Avaluer:49168779 | Modified Item: No |
THIS IS A LARGE CLEAVAGE PLATE OF KURNAKOVITE WITH INCLUSIONS OF ORPIMENT AND VERY MINOR ULEXITE AND THE TYPICAL MUD INCLUSIONS. THE SPECIMEN IS APPROXIMATELY 9 X 9 X 3 cm. AND WEIGHS 232.4 gm. THE SPECIMEN IS FROM THE U.S. BORAX MINE, BORON, KRAMER DISTRICT, KERN CO., CALIFORNIA. THE SPECIMEN IS CLEAN AND BRIGHT AND IT DISPLAYS WELL. THE FRONT IN THE FIRST PICTURE HAS A VERY BRIGHT AND CLEAN MIRROR SURFACE OF THE PERFECT CLEAVAGE. THE YELLOW AND ORANGE CO...LORATION, WHICH DON'T SHOW WELL IN THE PICTURES, IS CAUSED BY THE INCLUSION OF ORPIMENT, AN ARSENIC SULFIDE. KURNAKOVITE IS A RARE HYDROUS MAGNESIUM BORATE. LARGE, PERFECT CLEAVAGE PLATES LIKE THIS ARE SCARCE. IT WAS COLLECTED IN 1959. KURNAKOVITE IS STABLE IN THE ATMOSPHERE. SEE PICTURES. I WILL COMBINE SHIPPING WHEN POSSIBLE. THANKS FOR LOOKING.
